EP3909829B1 - Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset - Google Patents
Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset Download PDFInfo
- Publication number
- EP3909829B1 EP3909829B1 EP19908343.7A EP19908343A EP3909829B1 EP 3909829 B1 EP3909829 B1 EP 3909829B1 EP 19908343 A EP19908343 A EP 19908343A EP 3909829 B1 EP3909829 B1 EP 3909829B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- sliding
- sealing
- ring
- sealing apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims description 106
- 230000007246 mechanism Effects 0.000 claims description 64
- 238000005096 rolling process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F7/00—Rail vehicles equipped for use on tracks of different width
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F15/00—Axle-boxes
- B61F15/12—Axle-boxes with roller, needle, or ball bearings
- B61F15/16—Axle-boxes with roller, needle, or ball bearings the axle being slidable or tiltable in the bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F15/00—Axle-boxes
- B61F15/20—Details
- B61F15/22—Sealing means preventing entrance of dust or leakage of oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F15/00—Axle-boxes
- B61F15/20—Details
- B61F15/26—Covers; Sealing thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
Definitions
- the present application relates to the technical field of rail vehicle gauge change, and in particular, to a sealing apparatus for gauge-changing wheelset and a gauge-changing wheelset.
- EP1064185A1 discloses a bearing unit, comprising a rolling element bearing having an inner ring means and an outer ring means, said inner ring means being fitted on an axle stub between two opposite mounting faces, means being provided for preventing fretting corrosion between at least one of said mounting faces and the inner ring means, characterized in that said at least one mounting face and the inner ring means engage each other by means of a non-metallic polymer support ring.
- the bearing unit can be applied as a railway axlebox bearing unit.
- the present application is intended to solve at least one of the technical problems in the prior art or related technologies.
- the present invention provides a sealing apparatus according to claim 1 for gauge-changing wheelset.
- the sealing apparatus can be arranged between a sliding mechanism of the gauge-changing wheelset and an axle-box rear cover of an axle-box body, the sliding mechanism is axially movable relative to the axle-box body and rotatable relative to the axle-box body.
- the sealing apparatus includes a sliding seal and a rotating seal
- the sliding seal includes a sliding ring sleeved outside the sliding mechanism and hermetically connected to the axle-box rear cover, an inner wall of the sliding ring is axially provided with a through groove, and an outer wall of the sliding mechanism is axially provided with a protrusion which is slidably fitted with the through groove
- the rotating seal includes a sealing baffle fixed on an outer side of the axle-box rear cover, an outer wall of the sliding ring is circumferentially provided with an annular groove, and a lower end of the sealing baffle extends into the annular groove.
- the sealing apparatus further includes a first sealing ring
- the axle-box rear cover is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole, an outer circumference of the first sealing ring is installed by interference in the first mounting groove, and an inner circumference of the first sealing ring is pressed against an outer circumference of the sliding ring.
- the outer wall of the sliding mechanism is axially provided with a positioning groove, in which a positioning key protruding from the positioning groove is placed to form the protrusion.
- the inner wall of the sliding ring is circumferentially provided with a plurality of the through grooves
- the outer wall of the sliding mechanism is circumferentially provided with the protrusions corresponding to the through grooves in a one-to-one manner.
- the inner wall of the sliding ring is circumferentially provided with two through grooves, and the two through grooves are arranged on two radial sides of the inner wall of the sliding ring.
- the sealing baffle includes a first baffle and a second baffle butted end to end to form a ring, and an inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in the annular groove of the sliding ring.
- the first baffle and the second baffle have L-shaped cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover by fasteners, and a longer side of the L-shape is arranged proximate to the outside of the axle-box rear cover.
- a second sealing ring is arranged between the sliding ring and the sliding mechanism, and the second sealing ring is fixedly sleeved in a second mounting groove on an outer circumference of the sliding mechanism.
- An embodiment of the present invention also provides a gauge-changing wheelset, including sliding mechanisms, axle-box bodies and sealing apparatus for gauge-changing wheelset, where the sealing apparatus is arranged between the sliding mechanism and the axle-box rear cover of the axle-box body, and is configured to provide the axially sliding sealing and a rotating sealing of the sliding mechanism.
- the gauge-changing wheelset further includes wheels and an axle, where the wheels are slidably arranged at both ends of the axle, the sliding mechanisms are respectively connected with the wheels, and are located in the axle-box bodies at both ends of the axle, the wheels are unlocked and locked through the sliding mechanisms, and the sliding mechanism includes an inner sleeve sleeved on the axle and in clearance fit with the axle, and the sealing apparatus is arranged between the inner sleeve and the axle-box rear cover of the axle-box body.
- the present invention has at least the following advantages: the embodiments of the present invention provide a sealing apparatus for gauge-changing wheelset, the sealing apparatus is arranged between the sliding mechanism of the gauge-changing wheelset and the axle-box rear cover of the axle-box body, the sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring sleeved outside the sliding mechanism and hermetically connected to the axle-box rear cover, the inner wall of the sliding ring is axially provided with a through groove, and the outer wall of the sliding mechanism is axially provided with a protrusion which is slidably fitted with the through groove.
- the rotating seal includes a sealing baffle fixed on the outer side of the axle-box rear, the outer wall of the sliding ring is circumferentially provided with an annular groove, and the lower end of the sealing baffle extends into the annular groove to provide axial positioning for the sliding ring, so that the sliding ring does not move axially; therefore, the sliding ring can only rotate circumferentially relative to the axle-box rear cover, and can only slide axially relative to the sliding mechanism.
- the double-degree of-freedom sealing is decoupled into a two-stage single-degree-of-freedom sealing, in which each layer of the sealing is only for relative translation or relative rotation, so as to improve the sealing environment and enhance the sealing effects. It is also conductive to the optimization of the seals under a single influence factor, and finally realize the sealing of the composite degree of freedom structure.
- axle-box body 1 axle-box body 2 axle-box rear cover; 3 sliding mechanism 31 inner sleeve 32 rolling bearing 33 outer sleeve 34 positioning key 4 sliding ring 41 through groove 42 annular groove 5 sealing baffle 6 first sealing ring 7 second sealing ring 8 axle
- orientation or positional relationships indicated by terms such as “center”, “longitudinal”, “lateral”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside” and the like are based on the orientation or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component stated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
- the terms “first”, “second”, “third”, and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
- the terms “installed”, “connected with”, and “connected” shall be understood in a broad sense, for example, it may be either fixedly connected or detachably connected, or may be integrally connected; it may be mechanically connected, or electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, or the communication between the interior of two elements.
- installed may be either fixedly connected or detachably connected, or may be integrally connected; it may be mechanically connected, or electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, or the communication between the interior of two elements.
- an embodiment of the present invention provides a sealing apparatus for gauge-changing wheelset.
- the gauge-changing wheelset includes a sliding mechanism 3 and an axle-box body 1.
- the sliding mechanism 3 can move back and forth relative to the axial direction of the axle-box body 1 to meet the requirements of gauge change.
- one end of the axle-box body 1 is provided with an axle-box front cover, and the other end of the axle-box body 1 is provided with an axle-box rear cover 2.
- the sliding mechanism 3 is located in the axle-box body 1, passes out of the axle-box rear cover 2 and is connected with the wheel.
- the sealing apparatus is arranged between the sliding mechanism 3 of the gauge-changing wheelset and the axle-box rear cover 2 of the axle-box body 1; in an embodiment, the sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring 4 sleeved outside the sliding mechanism 3 and hermetically connected to the axle-box rear cover 2. As shown in FIG.
- an inner wall of the sliding ring 4 is axially provided with a through groove 41
- an outer wall of the sliding mechanism 3 is axially provided with a protrusion which is slidably fitted with the through groove 41.
- an outer wall of the sliding ring 4 is circumferentially provided with an annular groove 42, and a lower end of the sealing baffle 5 extends into the annular groove 42 to provide axial positioning for the sliding ring 4, so that the sliding ring 4 does not move axially, as a result, the sliding ring 4 may only rotate circumferentially relative to the axle-box rear cover 2, and can only slide axially relative to the sliding mechanism 3.
- the double-degree-of-freedom sealing is decoupled into a two-stage single-degree-of-freedom sealing, in which each layer of sealing is only for relative translation or relative rotation, so as to improve the sealing environment and enhance the sealing effects. It is also conductive to the optimization of the seals under a single influence factor, so as to finally seal the composite-degree-of-freedom structure.
- a first sealing ring 6 is also included.
- the first sealing ring 6 may be a rubber sealing ring
- the axle-box rear cover 2 is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole.
- the first mounting hole is annular
- the outer circumference of the first sealing ring 6 is installed by interference in the first mounting groove
- the inner circumference of the first sealing ring 6 is pressed against an outer circumference of the sliding ring 4.
- the outer wall of the sliding mechanism 3 is axially provided with a positioning groove in which a positioning key 34 protruding from the positioning groove is placed, the length of the positioning key 34 matches the length of the positioning groove, and the thickness of the positioning key 34 is greater than the depth of the positioning groove, so that after the positioning key 34 is installed in the positioning groove, an upper surface of the positioning key 34 is higher than the positioning groove to form the protrusion, through which the sliding ring 4 and the sliding mechanism 3 may rotate together, and the protrusion does not restrict the axial movement of the sliding mechanism 3.
- one through groove 41 may be arranged on the circumferential direction of the inner wall of the sliding ring 4, but in order to make the force deployed on the sliding ring 4 evenly, a plurality of through grooves 41 are preferably arranged on the circumferential direction of the inner wall of the sliding ring 4.
- the plurality of through grooves 41 may be evenly distributed on the inner wall of the sliding ring 4 along the circumferential direction, and the protrusions corresponding to the through grooves 41 in a one-to-one manner are provided on the outer wall of the sliding mechanism 3 along the circumferential direction.
- the inner wall of the sliding ring 4 is circumferentially provided with two through grooves 41, which are arranged on two radial sides of the inner wall of the sliding ring 4.
- the sealing baffle 5 in order to fit with the annular groove 42 outside the sliding ring 4 and fully seal the circumferential direction of the annular groove 42, the sealing baffle 5 includes a first baffle and a second baffle butted end to end to form a ring.
- the sealing baffle 5 is divided into a first baffle and a second baffle so as to facilitate the installation from the top and bottom, and the inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in the annular groove 42 of the sliding ring 4.
- the inner circumference of the first baffle and the second baffle is rotationally sealed to the annular groove 42.
- the first baffle and the second baffle have specifically L-shaped radial cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover 2 by fasteners such as bolts, and a longer side of the L-shape is arranged proximate to an outer side of the axle-box rear cover 2 and extends into the annular groove 42.
- a slender gap which has a labyrinth function.
- a second sealing ring 7 such as a sealing rubber O-ring, is arranged between the sliding ring 4 and the sliding mechanism 3, and the second sealing ring 7 is fixedly sleeved in the second mounting groove on the outer circumference of the sliding mechanism 3.
- the inner circumference of the sliding ring 4 is in sealing contact with the second sealing ring 7 to further enhance the sealing effects.
- An embodiment of the present invention also provides a gauge-changing wheelset, which includes sliding mechanisms 3, axle-box bodies 1 and the above-mentioned sealing apparatus for gauge-changing wheelset.
- the sealing apparatus is arranged between the sliding mechanism 3 and the axle-box rear cover 2 of the axle-box body 1, and is configured to provide the axial sliding sealing and the rotating sealing of the sliding mechanism.
- sealing is performed in each single degree of freedom separately by decomposing the degrees of freedom, thereby reducing the difficulty in sealing, and ensuring the high-speed operation performance of the gauge-changing wheelset while ensuring the sealing performance of the multi-degree-of-freedom movement.
- the gauge-changing wheelset further includes wheels and an axle 8, and the wheels are slidably arranged at both ends of the axle 8.
- the wheel is provided with inner splines on the inner circumference thereof
- the axle 8 is provided with outer splines at both ends thereof
- the wheels are fitted and connected with the two ends of the axle 8 through the inner splines and the outer splines, which is convenient for both torque transmission and wheel movement.
- the sliding mechanisms 3 are respectively connected with the wheels, and are located in the axle-box bodies 1 at both ends of the axle 8. The wheel is unlocked and locked through the sliding mechanism 3.
- the sliding mechanism 3 includes an inner sleeve 31 sleeved on the axle 8 and in clearance fit with the axle 8, and the sealing apparatus is arranged between the inner sleeve 31 and the axle-box rear cover 2, the protrusion is thus arranged outside the inner sleeve 31, and the positioning groove is arranged on the inner sleeve 31; an end of the inner sleeve 31 towards the wheel extends out of the axle-box body 1 and is fixedly connected to the wheel through fasteners, and a gauge change space is reserved between the extending end of the inner sleeve 31 and the axle 8, so as to ensure that the inner sleeve 31 has enough distance to move along the axle 8 without interference with the axle 8 when the gauge is changed.
- the sliding mechanism 3 further includes a rolling bearing 32 and an outer sleeve 33, and the inner sleeve 31, the rolling bearing 32 and the outer sleeve 33 are tightly sleeved in sequence from inside to outside.
- the inner sleeve 31 and the inner ring of the rolling bearing 32 rotate with the wheel, while the outer sleeve 33 and the outer ring of the rolling bearing 32 remain relatively fixed.
- the outer sleeve 33 and the inner surface of the axle-box body 1 are in clearance fit, so that the outer sleeve 33, the inner sleeve 31 and the rolling bearing 32 can move along the axle-box body 1 as a whole.
- sealing is performed in each single degree of freedom separately by decomposing the degrees of freedom, thus reducing the difficulty of sealing and ensuring the high-speed performance of gauge-changing wheelset while ensuring the sealing performance of the multi-degree-of-freedom movement.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
- Gasket Seals (AREA)
Description
- The present application claims priority to
Chinese application No. 201910012719X filed on January 7, 2019 - The present application relates to the technical field of rail vehicle gauge change, and in particular, to a sealing apparatus for gauge-changing wheelset and a gauge-changing wheelset.
- With the rapid evolution of global economic integration, transnational passenger and cargo transportation has grown rapidly in recent years. However, different rail gauges of various countries have seriously hindered the transnational rail transportation. In order to solve the problem that the different rail gauges of various countries hinder the transnational railway transportation, a gauge-changing wheelset is proposed, that is, when running on a railway of another country, a train changes the distance between the wheels of its own wheelset to adapt to the gauge of the railway of another country.
- During the process of gauge change, a sliding mechanism on the wheelset will slide relative to an axle-box body under the pushing of the ground guide rail. The traditional sealing structure cannot be applied to gauge-changing wheelsets. Therefore, how to seal between the sliding mechanism and the axle-box body is an urgent problem to be solved.
-
EP1064185A1 discloses a bearing unit, comprising a rolling element bearing having an inner ring means and an outer ring means, said inner ring means being fitted on an axle stub between two opposite mounting faces, means being provided for preventing fretting corrosion between at least one of said mounting faces and the inner ring means, characterized in that said at least one mounting face and the inner ring means engage each other by means of a non-metallic polymer support ring. The bearing unit can be applied as a railway axlebox bearing unit. - The present application is intended to solve at least one of the technical problems in the prior art or related technologies.
- It is an objective of the present application to provide a sealing apparatus for gauge-changing wheelset to seal between the sliding mechanism and the axle-box body, thereby improving the sealing environment and enhancing sealing effects.
- In order to solve the technical problems mentioned above, the present invention provides a sealing apparatus according to claim 1 for gauge-changing wheelset. The sealing apparatus can be arranged between a sliding mechanism of the gauge-changing wheelset and an axle-box rear cover of an axle-box body, the sliding mechanism is axially movable relative to the axle-box body and rotatable relative to the axle-box body. The sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring sleeved outside the sliding mechanism and hermetically connected to the axle-box rear cover, an inner wall of the sliding ring is axially provided with a through groove, and an outer wall of the sliding mechanism is axially provided with a protrusion which is slidably fitted with the through groove; the rotating seal includes a sealing baffle fixed on an outer side of the axle-box rear cover, an outer wall of the sliding ring is circumferentially provided with an annular groove, and a lower end of the sealing baffle extends into the annular groove.
- In an embodiment of the present invention the sealing apparatus further includes a first sealing ring, the axle-box rear cover is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole, an outer circumference of the first sealing ring is installed by interference in the first mounting groove, and an inner circumference of the first sealing ring is pressed against an outer circumference of the sliding ring.
- In an embodiment of the present invention, the outer wall of the sliding mechanism is axially provided with a positioning groove, in which a positioning key protruding from the positioning groove is placed to form the protrusion.
- In an embodiment of the present invention, the inner wall of the sliding ring is circumferentially provided with a plurality of the through grooves, and the outer wall of the sliding mechanism is circumferentially provided with the protrusions corresponding to the through grooves in a one-to-one manner.
- In an embodiment of the present invention, the inner wall of the sliding ring is circumferentially provided with two through grooves, and the two through grooves are arranged on two radial sides of the inner wall of the sliding ring.
- In an embodiment of the present invention, the sealing baffle includes a first baffle and a second baffle butted end to end to form a ring, and an inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in the annular groove of the sliding ring.
- In an embodiment of the present invention, the first baffle and the second baffle have L-shaped cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover by fasteners, and a longer side of the L-shape is arranged proximate to the outside of the axle-box rear cover.
- In an embodiment of the present invention, a second sealing ring is arranged between the sliding ring and the sliding mechanism, and the second sealing ring is fixedly sleeved in a second mounting groove on an outer circumference of the sliding mechanism.
- An embodiment of the present invention also provides a gauge-changing wheelset, including sliding mechanisms, axle-box bodies and sealing apparatus for gauge-changing wheelset, where the sealing apparatus is arranged between the sliding mechanism and the axle-box rear cover of the axle-box body, and is configured to provide the axially sliding sealing and a rotating sealing of the sliding mechanism.
- In an embodiment of the present invention, the gauge-changing wheelset further includes wheels and an axle, where the wheels are slidably arranged at both ends of the axle, the sliding mechanisms are respectively connected with the wheels, and are located in the axle-box bodies at both ends of the axle, the wheels are unlocked and locked through the sliding mechanisms, and the sliding mechanism includes an inner sleeve sleeved on the axle and in clearance fit with the axle, and the sealing apparatus is arranged between the inner sleeve and the axle-box rear cover of the axle-box body.
- Compared with the prior art, the present invention has at least the following advantages:
the embodiments of the present invention provide a sealing apparatus for gauge-changing wheelset, the sealing apparatus is arranged between the sliding mechanism of the gauge-changing wheelset and the axle-box rear cover of the axle-box body, the sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a sliding ring sleeved outside the sliding mechanism and hermetically connected to the axle-box rear cover, the inner wall of the sliding ring is axially provided with a through groove, and the outer wall of the sliding mechanism is axially provided with a protrusion which is slidably fitted with the through groove. When the sliding mechanism moves, the protrusion moves along the through groove, so as to ensure that the sliding ring and the sliding mechanism may rotate together and slide along the axial direction relative to each other; the rotating seal includes a sealing baffle fixed on the outer side of the axle-box rear, the outer wall of the sliding ring is circumferentially provided with an annular groove, and the lower end of the sealing baffle extends into the annular groove to provide axial positioning for the sliding ring, so that the sliding ring does not move axially; therefore, the sliding ring can only rotate circumferentially relative to the axle-box rear cover, and can only slide axially relative to the sliding mechanism. For the sealing apparatus, the double-degree of-freedom sealing is decoupled into a two-stage single-degree-of-freedom sealing, in which each layer of the sealing is only for relative translation or relative rotation, so as to improve the sealing environment and enhance the sealing effects. It is also conductive to the optimization of the seals under a single influence factor, and finally realize the sealing of the composite degree of freedom structure. -
-
FIG. 1 is an axial cross-sectional view of a sealing apparatus for gauge-changing wheelset according to an embodiment of the present invention; -
FIG. 2 is a partial enlarged view of A inFIG. 1 ; -
FIG. 3 is a front view of a sliding ring in a sealing apparatus for gauge-changing wheelset according to an embodiment of the present invention; and -
FIG. 4 is a sectional view of A-A inFIG. 3 ; - Reference numerals:
1 axle-box body 2 axle-box rear cover; 3 sliding mechanism 31 inner sleeve 32 rolling bearing 33 outer sleeve 34 positioning key 4 sliding ring 41 through groove 42 annular groove 5 sealing baffle 6 first sealing ring 7 second sealing ring 8 axle - The specific embodiments of the present invention are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are intended to illustrate the present application, but are not intended to limit the scope of the present application.
- In the description of the present invention, it should be noted that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are based on the orientation or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component stated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Moreover, the terms "first", "second", "third", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
- In the description of the present invention, it should be noted that unless otherwise explicitly stated and defined, the terms "installed", "connected with", and "connected" shall be understood in a broad sense, for example, it may be either fixedly connected or detachably connected, or may be integrally connected; it may be mechanically connected, or electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, or the communication between the interior of two elements. The specific meanings of the terms above in the present application can be understood by a person skilled in the art in accordance with specific conditions.
- In addition, in the description of the present invention, "multiple", "a plurality of", and "multiple groups" mean two or more unless otherwise specified.
- As shown in
FIGS. 1 to 4 , an embodiment of the present invention provides a sealing apparatus for gauge-changing wheelset. The gauge-changing wheelset includes a sliding mechanism 3 and an axle-box body 1. The sliding mechanism 3 can move back and forth relative to the axial direction of the axle-box body 1 to meet the requirements of gauge change. In order to ensure the basic sealing requirements of the axle-box body 1, one end of the axle-box body 1 is provided with an axle-box front cover, and the other end of the axle-box body 1 is provided with an axle-box rear cover 2. The sliding mechanism 3 is located in the axle-box body 1, passes out of the axle-box rear cover 2 and is connected with the wheel. During the normal operation of the gauge-changing wheelset, the sliding mechanism 3 rotates with the wheel, and the axle-box body 1 is relatively fixed, so that the sliding mechanism 3 may rotate relative to the axle-box body 1, that is, the sliding mechanism 3 has the rotational degree of freedom and translational degree of freedom for movement along the axle-box 1. The sealing apparatus is arranged between the sliding mechanism 3 of the gauge-changing wheelset and the axle-box rear cover 2 of the axle-box body 1; in an embodiment, the sealing apparatus includes a sliding seal and a rotating seal, the sliding seal includes a slidingring 4 sleeved outside the sliding mechanism 3 and hermetically connected to the axle-box rear cover 2. As shown inFIG. 3 , an inner wall of thesliding ring 4 is axially provided with athrough groove 41, and an outer wall of the sliding mechanism 3 is axially provided with a protrusion which is slidably fitted with thethrough groove 41. When the sliding mechanism 3 moves, the protrusion moves along the throughgroove 41, so as to ensure that thesliding ring 4 and the sliding mechanism 3 may rotate together, and slide relative to each other along the axial direction; the rotating seal includes a sealingbaffle 5 fixed on an outer side of the axle-box rear cover 2. As shown inFIG. 4 , an outer wall of thesliding ring 4 is circumferentially provided with anannular groove 42, and a lower end of thesealing baffle 5 extends into theannular groove 42 to provide axial positioning for thesliding ring 4, so that thesliding ring 4 does not move axially, as a result, thesliding ring 4 may only rotate circumferentially relative to the axle-box rear cover 2, and can only slide axially relative to the sliding mechanism 3. In the present application, the double-degree-of-freedom sealing is decoupled into a two-stage single-degree-of-freedom sealing, in which each layer of sealing is only for relative translation or relative rotation, so as to improve the sealing environment and enhance the sealing effects. It is also conductive to the optimization of the seals under a single influence factor, so as to finally seal the composite-degree-of-freedom structure. - In an embodiment of the present invention, as shown in
FIG. 1 , in order to realize the sealing connection between the axle-box rear cover 2 and thesliding ring 4, afirst sealing ring 6 is also included. Thefirst sealing ring 6 may be a rubber sealing ring, the axle-box rear cover 2 is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole. The first mounting hole is annular, the outer circumference of thefirst sealing ring 6 is installed by interference in the first mounting groove, and the inner circumference of thefirst sealing ring 6 is pressed against an outer circumference of thesliding ring 4. When thesliding ring 4 is rotated, the outer circumference of thesliding ring 4 is rotatably and hermetically connected to thefirst sealing ring 6. - In an embodiment of the present invention, in order to facilitate the formation of the protrusion, the outer wall of the sliding mechanism 3 is axially provided with a positioning groove in which a
positioning key 34 protruding from the positioning groove is placed, the length of the positioning key 34 matches the length of the positioning groove, and the thickness of thepositioning key 34 is greater than the depth of the positioning groove, so that after thepositioning key 34 is installed in the positioning groove, an upper surface of thepositioning key 34 is higher than the positioning groove to form the protrusion, through which the slidingring 4 and the sliding mechanism 3 may rotate together, and the protrusion does not restrict the axial movement of the sliding mechanism 3. - In an embodiment of the present invention, one through
groove 41 may be arranged on the circumferential direction of the inner wall of the slidingring 4, but in order to make the force deployed on the slidingring 4 evenly, a plurality of throughgrooves 41 are preferably arranged on the circumferential direction of the inner wall of the slidingring 4. The plurality of throughgrooves 41 may be evenly distributed on the inner wall of the slidingring 4 along the circumferential direction, and the protrusions corresponding to the throughgrooves 41 in a one-to-one manner are provided on the outer wall of the sliding mechanism 3 along the circumferential direction. - In an embodiment of the present invention, in order to simplify the structure, the inner wall of the sliding
ring 4 is circumferentially provided with two throughgrooves 41, which are arranged on two radial sides of the inner wall of the slidingring 4. - In an embodiment of the present invention, in order to fit with the
annular groove 42 outside the slidingring 4 and fully seal the circumferential direction of theannular groove 42, the sealingbaffle 5 includes a first baffle and a second baffle butted end to end to form a ring. The sealingbaffle 5 is divided into a first baffle and a second baffle so as to facilitate the installation from the top and bottom, and the inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in theannular groove 42 of the slidingring 4. When the slidingring 4 is rotated, the inner circumference of the first baffle and the second baffle is rotationally sealed to theannular groove 42. - In an embodiment of the present invention, the first baffle and the second baffle have specifically L-shaped radial cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover 2 by fasteners such as bolts, and a longer side of the L-shape is arranged proximate to an outer side of the axle-box rear cover 2 and extends into the
annular groove 42. - In an embodiment of the present invention, provided between the sliding
ring 4 and the sliding mechanism 3 is a slender gap, which has a labyrinth function. As shown inFIG. 2 , asecond sealing ring 7, such as a sealing rubber O-ring, is arranged between the slidingring 4 and the sliding mechanism 3, and thesecond sealing ring 7 is fixedly sleeved in the second mounting groove on the outer circumference of the sliding mechanism 3. When the slidingring 4 moves, the inner circumference of the slidingring 4 is in sealing contact with thesecond sealing ring 7 to further enhance the sealing effects. - An embodiment of the present invention also provides a gauge-changing wheelset, which includes sliding mechanisms 3, axle-box bodies 1 and the above-mentioned sealing apparatus for gauge-changing wheelset. The sealing apparatus is arranged between the sliding mechanism 3 and the axle-box rear cover 2 of the axle-box body 1, and is configured to provide the axial sliding sealing and the rotating sealing of the sliding mechanism. In the present application, sealing is performed in each single degree of freedom separately by decomposing the degrees of freedom, thereby reducing the difficulty in sealing, and ensuring the high-speed operation performance of the gauge-changing wheelset while ensuring the sealing performance of the multi-degree-of-freedom movement.
- In an embodiment of the present invention as shown in
FIG. 1 , the gauge-changing wheelset further includes wheels and anaxle 8, and the wheels are slidably arranged at both ends of theaxle 8. In an embodiment, the wheel is provided with inner splines on the inner circumference thereof, theaxle 8 is provided with outer splines at both ends thereof, and the wheels are fitted and connected with the two ends of theaxle 8 through the inner splines and the outer splines, which is convenient for both torque transmission and wheel movement. The sliding mechanisms 3 are respectively connected with the wheels, and are located in the axle-box bodies 1 at both ends of theaxle 8. The wheel is unlocked and locked through the sliding mechanism 3. The sliding mechanism 3 includes aninner sleeve 31 sleeved on theaxle 8 and in clearance fit with theaxle 8, and the sealing apparatus is arranged between theinner sleeve 31 and the axle-box rear cover 2, the protrusion is thus arranged outside theinner sleeve 31, and the positioning groove is arranged on theinner sleeve 31; an end of theinner sleeve 31 towards the wheel extends out of the axle-box body 1 and is fixedly connected to the wheel through fasteners, and a gauge change space is reserved between the extending end of theinner sleeve 31 and theaxle 8, so as to ensure that theinner sleeve 31 has enough distance to move along theaxle 8 without interference with theaxle 8 when the gauge is changed. The sliding mechanism 3 further includes a rollingbearing 32 and anouter sleeve 33, and theinner sleeve 31, the rollingbearing 32 and theouter sleeve 33 are tightly sleeved in sequence from inside to outside. When the wheel rotates, theinner sleeve 31 and the inner ring of the rollingbearing 32 rotate with the wheel, while theouter sleeve 33 and the outer ring of the rollingbearing 32 remain relatively fixed. Theouter sleeve 33 and the inner surface of the axle-box body 1 are in clearance fit, so that theouter sleeve 33, theinner sleeve 31 and the rollingbearing 32 can move along the axle-box body 1 as a whole. By arranging the sealing apparatus between theinner sleeve 31 and the axle-box rear cover 2 of the axle-box body 1, a good sealing can be achieved when theinner sleeve 31 moves or rotates, and each layer of sealing is only for relative translation or relative rotation, thereby improving the sealing environment and enhancing the sealing effects. - As can be seen from the above embodiments, in the present invention, sealing is performed in each single degree of freedom separately by decomposing the degrees of freedom, thus reducing the difficulty of sealing and ensuring the high-speed performance of gauge-changing wheelset while ensuring the sealing performance of the multi-degree-of-freedom movement.
- The descriptions above are only preferred embodiments of the present application and are not intended to limit the present application.
Claims (10)
- A sealing apparatus for a gauge changing wheelset, wherein, the sealing apparatus can be arranged between a sliding mechanism (3) of the gauge changing wheelset and an axle-box rear cover (2) of an axle-box body (1); the sliding mechanism (3) is axially movable relative to the axle-box body (1) and rotatable relative to the axle-box body (1), the sealing apparatus comprising a sliding seal and a rotating seal; the sliding seal comprises a sliding ring (4) that can be sleeved outside the sliding mechanism (3) and hermetically connected to the axle-box rear cover (2);
characterized in that, an inner wall of the sliding ring (4) is axially provided with a through groove (41) which can be slidably fitted with a protrusion axially provided in an outer wall of the sliding mechanism (3); the rotating seal comprises a sealing baffle (5) that can be fixed on an outer side of the axle-box rear cover (2), an outer wall of the sliding ring (4) is circumferentially provided with an annular groove (42), and a lower end of the sealing baffle (5) extends into the annular groove (42). - The sealing apparatus for a gauge changing wheelset of claim 1, further comprising a first sealing ring (6), the axle-box rear cover (2) is provided with an axial through hole and is also provided with a first mounting groove on an inner circumference of the axial through hole, an outer circumference of the first sealing ring (6) is installed by interference in the first mounting groove, and an inner circumference of the first sealing ring (6) is pressed against an outer circumference of the sliding ring (4).
- The sealing apparatus for a gauge changing wheelset of claim 1, characterized in that, the outer wall of the sliding mechanism (3) is axially provided with a positioning groove, in which a positioning key (34) protruding from the positioning groove is placed to form the protrusion.
- The sealing apparatus for a gauge changing wheelset of claim 1, characterized in that, the inner wall of the sliding ring (4) is circumferentially provided with a plurality of the through grooves (41), and the outer wall of the sliding mechanism (3) is circumferentially provided with protrusions corresponding to the through grooves (41) in a one-to-one manner.
- The sealing apparatus for a gauge changing wheelset of claim 4, characterized in that, the inner wall of the sliding ring (4) is circumferentially provided with two said through grooves (41), and the two through grooves (41) are arranged on two radial sides of the inner wall of the sliding ring (4).
- The sealing apparatus for a gauge changing wheelset of claim 1, characterized in that, the sealing baffle (5) comprises a first baffle and a second baffle butted end to end to form a ring, and an inner circumference of the ring formed by the butting of the first baffle and the second baffle is located in the annular groove (42) of the sliding ring (4).
- The sealing apparatus for a gauge changing wheelset of claim 6, characterized in that, the first baffle and the second baffle have L-shaped cross sections, a shorter side of the L-shape is fastened on an outer circumference of the axle-box rear cover (2) by fasteners, and a longer side of the L-shape is arranged proximate to an outer side of the axle-box rear cover (2).
- The sealing apparatus for a gauge changing wheelset of claim 1, characterized in that, a second sealing ring (7) is arranged between the sliding ring (4) and the sliding mechanism (3), and the second sealing ring (7) is fixedly sleeved in a second mounting groove on an outer circumference of the sliding mechanism (3).
- A gauge changing wheelset, comprising sliding mechanisms (3), axle-box bodies (1) and sealing apparatus for a gauge changing wheelset of any one of claims 1 to 8, wherein the sealing apparatus is arranged between the sliding mechanism (3) and an axle-box rear cover (2) of the axle-box body (1), and is configured to provide an axial sliding sealing and a rotating sealing of the sliding mechanism (3).
- The gauge changing wheelset of claim 9, further comprising wheels and an axle (8), wherein the wheels are slidably arranged at both ends of the axle (8), the sliding mechanisms (3) are respectively connected with the wheels, and are located in the axle-box bodies (1) at both ends of the axle (8), the wheels are unlocked and locked through the sliding mechanisms (3), and the sliding mechanism (3) includes an inner sleeve (31) sleeved on the axle (8) and in clearance fit with the axle (8), and the sealing apparatus is arranged between the inner sleeve (31) and the axle-box rear cover (2) of the axle-box body (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910012719.XA CN109733434B (en) | 2019-01-07 | 2019-01-07 | Sealing device for track-variable wheel set and track-variable wheel set |
PCT/CN2019/108096 WO2020143251A1 (en) | 2019-01-07 | 2019-09-26 | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3909829A1 EP3909829A1 (en) | 2021-11-17 |
EP3909829A4 EP3909829A4 (en) | 2022-04-20 |
EP3909829B1 true EP3909829B1 (en) | 2023-09-06 |
Family
ID=66363687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19908343.7A Active EP3909829B1 (en) | 2019-01-07 | 2019-09-26 | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3909829B1 (en) |
JP (1) | JP7066259B2 (en) |
CN (1) | CN109733434B (en) |
ES (1) | ES2958919T3 (en) |
PL (1) | PL3909829T3 (en) |
RU (1) | RU2759204C1 (en) |
WO (1) | WO2020143251A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109733434B (en) * | 2019-01-07 | 2020-05-08 | 中车青岛四方机车车辆股份有限公司 | Sealing device for track-variable wheel set and track-variable wheel set |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9400995U1 (en) * | 1994-01-21 | 1994-03-31 | FAG Kugelfischer Georg Schäfer AG, 97421 Schweinfurt | Sealing system |
NL1008681C2 (en) * | 1998-03-23 | 1999-09-24 | Skf Eng & Res Centre Bv | Train bearing unit with improved anti-frictional corrosion behavior. |
JP3717427B2 (en) | 2001-06-28 | 2005-11-16 | シャープ株式会社 | Image forming apparatus |
JP4216000B2 (en) * | 2002-05-15 | 2009-01-28 | 財団法人鉄道総合技術研究所 | Wheel shaft and bogie with variable gauge mechanism |
JP4060232B2 (en) * | 2003-05-12 | 2008-03-12 | Ntn株式会社 | Railway vehicle bearing device |
DE102005016705A1 (en) * | 2005-04-12 | 2006-10-19 | Schaeffler Kg | Cartridge seal for rail vehicle, has seal carrier ring with elastomer seal, and centrifuge ring, where height constant axial gap is provided between short profile side of simultaneously rotatable centrifuge rings and ring surface of seal |
RU2309071C2 (en) * | 2006-01-25 | 2007-10-27 | Гимадиев Фарит Шайхиевич | Device to change extensible wheelsets from one gauge to the other |
UA87904C2 (en) * | 2007-10-29 | 2009-08-25 | Восточноукраинский Национальный Университет Имени Владимира Даля | extensible wheel pair of railroad transport vehicle |
RU2369503C1 (en) * | 2008-03-03 | 2009-10-10 | Гимадиев Фарит Шайхиевич | Device to transfer extension wheel pairs from one track onto another |
UA95509C2 (en) * | 2009-08-26 | 2011-08-10 | Акционерное Общество "У.П.Э.К." | Axle box bearing assembly |
EP2833011A1 (en) * | 2013-07-31 | 2015-02-04 | Aktiebolaget SKF | Railway axlebox assembly and railway axlebox including the same |
US9789887B2 (en) * | 2015-05-11 | 2017-10-17 | Aktiebolaget Skf | Backing ring assembly for railcar axle bearings |
FR3060504B1 (en) * | 2016-12-16 | 2022-01-07 | Skf Ab | AXLE BOX FOR RAILWAY VEHICLE BOGIE AND RAILWAY BOGIE EQUIPPED WITH SUCH AN AXLE BOX |
CN207191061U (en) * | 2017-09-01 | 2018-04-06 | 西南交通大学 | A kind of latch assembly applied to gauge-changeable bogie |
CN107856692A (en) * | 2017-11-23 | 2018-03-30 | 中车长春轨道客车股份有限公司 | For realizing the wheelslip device of quasi- arrow gauge conversion |
CN107856693A (en) * | 2017-11-23 | 2018-03-30 | 中车长春轨道客车股份有限公司 | The EMU power wheel set axle box device of quasi- broad gage conversion |
CN108407839B (en) * | 2018-04-13 | 2019-11-22 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing structure for gauge-changeable wheelsets |
CN108909358B (en) * | 2018-07-05 | 2021-09-10 | 中车青岛四方机车车辆股份有限公司 | Variable-gauge wheel set and variable-gauge bogie |
CN108909360B (en) * | 2018-07-05 | 2021-08-24 | 中车青岛四方机车车辆股份有限公司 | Locking mechanism for track-variable wheel set and track-variable wheel set |
CN109733434B (en) * | 2019-01-07 | 2020-05-08 | 中车青岛四方机车车辆股份有限公司 | Sealing device for track-variable wheel set and track-variable wheel set |
-
2019
- 2019-01-07 CN CN201910012719.XA patent/CN109733434B/en active Active
- 2019-09-26 PL PL19908343.7T patent/PL3909829T3/en unknown
- 2019-09-26 JP JP2021546033A patent/JP7066259B2/en active Active
- 2019-09-26 WO PCT/CN2019/108096 patent/WO2020143251A1/en unknown
- 2019-09-26 RU RU2021106253A patent/RU2759204C1/en active
- 2019-09-26 ES ES19908343T patent/ES2958919T3/en active Active
- 2019-09-26 EP EP19908343.7A patent/EP3909829B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN109733434B (en) | 2020-05-08 |
PL3909829T3 (en) | 2024-02-26 |
WO2020143251A1 (en) | 2020-07-16 |
JP2022508782A (en) | 2022-01-19 |
JP7066259B2 (en) | 2022-05-13 |
EP3909829A1 (en) | 2021-11-17 |
EP3909829A4 (en) | 2022-04-20 |
ES2958919T3 (en) | 2024-02-16 |
RU2759204C1 (en) | 2021-11-10 |
CN109733434A (en) | 2019-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3778339B1 (en) | Bullet train gauge-changeable bogie for railway vehicle | |
EP3778342A1 (en) | Gauge-changeable wheelset | |
EP3778341B1 (en) | Ground rail switch structure for gauge-changeable bogie | |
CN108909355A (en) | A kind of wheel pair and bogie for gauge-changeable bogie | |
EP3909829B1 (en) | Sealing apparatus used for variable gauge wheelset, and variable gauge wheelset | |
CN109532920B (en) | Variable-gauge wheel set and variable-gauge bogie | |
EP4056447A1 (en) | Gauge-variable wheelset and rail vehicle | |
CN101830172A (en) | Wheel-rim electric axle | |
CN108909360B (en) | Locking mechanism for track-variable wheel set and track-variable wheel set | |
CN108909354A (en) | A kind of retaining mechanism and gauge-changeable wheelsets for gauge-changeable wheelsets | |
CN107757653A (en) | For realizing the wheelslip device of quasi- broad gage conversion | |
EP4032778B1 (en) | Wheel mounting bushing for variable-gauge wheelset, and variable-gauge wheelset | |
CN108909358B (en) | Variable-gauge wheel set and variable-gauge bogie | |
CN104455231A (en) | Double-intermediate shaft transmission assembly matched with parallel hydrodynamic retarder | |
WO2022021842A1 (en) | Axle for use in gauge-changeable wheel set, and gauge-changeable wheel set | |
US20190106126A1 (en) | Independent wheel drive device and vehicle | |
CN108909356B (en) | Locking mechanism for track-pitch-variable wheel set and track-pitch-variable wheel set | |
EP3831688B1 (en) | Lubricating structure for gauge-changeable wheelset and gauge-changeable wheelset | |
WO2022021864A1 (en) | Thrust conversion mechanism for gauge-variable wheel set, unlocking device, and gauge-variable wheel set | |
CN109532919B (en) | Grounding device for variable-gauge wheel pair and variable-gauge railway vehicle | |
CN216401148U (en) | Wheat wheel group suitable for installation in narrow space | |
CN220956810U (en) | Hub box type oil seal capable of being manually pressed onto hub | |
US3138115A (en) | Traction motor axle suspension | |
CN219119793U (en) | Axle hub oil seal | |
CN216691862U (en) | Cylindrical roller bearing unit for axle box of bogie of rail transit vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210303 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20220317 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B61F 15/22 20060101ALI20220311BHEP Ipc: B61F 15/26 20060101AFI20220311BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230329 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602019037154 Country of ref document: DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230928 Year of fee payment: 5 Ref country code: DE Payment date: 20230913 Year of fee payment: 5 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20230906 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231207 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20231004 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231206 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231207 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1608179 Country of ref document: AT Kind code of ref document: T Effective date: 20230906 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2958919 Country of ref document: ES Kind code of ref document: T3 Effective date: 20240216 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240106 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240106 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240108 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230926 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20230930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230926 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20230914 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230926 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230906 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230930 |